Results 1 to 5 of 5

Thread: 2-Step setup & use.

  1. #1

    Default 2-Step setup & use.

    Has anyone wired and used the 2-Step function in the Holley Sniper EFI? I set mine to Input #2 wire on the harness, and enabled it through the touchscreen, and set the RPM to 3400. Tried wiring it through a switch to ground and nothing. Then disconnected the switch and touched the Input wire to ground and nothing. Ideas?

    Also, what is the retard launch option and what are the advantages of that? First build for me and so far everything is running great. Will be installing the dual sync distributor this weekend. Thanks in advance!

  2. #2


    I'm using the 2-Step. Check & make sure the ECU is seeing a solid ground to the #2 Input (yellow), and that it's enabled in the software and it will work. The launch retard is to pull power out on the hit, so you do not spin.

  3. #3


    You say enabled in the software, via a laptop or in the 3.5” screen?
    Great explanation for the launch retard. Any quick pointers in how I go about setting it up? Or links? I’d hate to just start keying in numbers and jack something up.

  4. #4


    You go to Rev Limiters > Rev Limiter #1 > Enable > enter the RPM > select #2 Input. I cannot remember if you can do this through the touchscreen. If you save your current tune, you can always go back to it if something is not right.

  5. #5
    Join Date
    Dec 2009


    Yes, I'd save the current Config File to the SD card (LINK - page 73), just in case you want to revert back to it. (Related Forum Thread)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: Dominator MPFI & DIS, A/C, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/X-pipe/shorty headers, 100HP progressive dry direct-port NOS, 160A 3G alternator, Optima Red battery, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
About us
Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors have powered every NASCAR® Sprint® Cup team and nearly every NHRA® Pro–Stock champion for four decades. Now, Holley EFI is dominating the performance world as well as our products for GM's LS engine. Holley's products also include performance fuel pumps, intake manifolds & engine dress–up products for street performance, race and marine applications. As a single solution, or partnered with products from other Holley companies - Hooker Headers, Flowtech Headers, NOS Nitrous, Weiand, Earl's Performance Plumbing, or Diablosport - Holley products can give you the edge you need over the competition.
Join us